The zoo, ranked No. 4 last year, has been nominated to the list this year but needs public votes to make the final 10. Additionally, the zoo's herpetarium, Museum of Living Art, has been nominated for USA Today's “10 Best Zoo Exhibits.”

The Fort Worth Zoo is currently up against 19 other zoos, among them, the San Diego Zoo, Smithsonian's National Zoo and Dallas Zoo.

Voting closes April 30. The public is allowed to vote once a day every day. Winners will be announced May 4.